Question

If the measures of three angles of a quadrilateral are 100,84,76.Find the measure of 4th angle.

Answer 1

ANSWER:-

We know that the sum of all angles of quadrilateral is 360 degree.

so,

let 4th angle be x

100 + 84 + 76 + x = 360

260 + x = 360

x = 100

Hence fourth angle is of 100 degree.

MARK AS BRAINLIST.....

Answer 2

Answer:

Name the quadrilateral as ABCD.

Then write angle A +angle B+angle C+angle D=360°.

angle A=100° angle B=84° angle C=76° angle D =?.

Add 100+84+76=260.

Then angle D=360°-260°=100°

Therefore angle D=100°

Hope this helps you ☺